GTAC Observation Log 1. Date : 18/4/2014 2. Observation Sr. No. : 7055 3. Observer : Nimisha Kantharia,Nirupam Roy,G.C. Anupama,Prasun Dutta,Ashok Madhav Nagarhalli,Dipankar Banerjee,Tushar Prabhu 4. Observer's Email : ngk@ncra.tifr.res.in,roy.nirupam@gmail.com,gca@iiap.res.in,prasundutta151@gmail.com,ashok@prl.res.in,orion@prl.res.in,tpp@iiap.res.in 5. Project Name : ToO to search for radio emission at frequencies less than 1.5 GHz from nova systems - Nova V745 Sco - III 6. Project Code : ddtB122 7. Operator(s) : Pramod,Surender 8. Command File : /odisk/gtac/cmd/ngk/ddtb122-18apr14b.cmd 9. LTA File : /gsbifrdata/18apr/ddtb122_18apr2014.lta, 10. LogFlag File : /odisk/online1/logflags/DDTB122.FLAGS, ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 629 MHz ,RF2 : 253 MHz, SA1 : 0 dB, SA2 : 14 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 680 MHz, ILO2 : 304 MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 24+4 dB, 32 MHz,OFF, IF-CH2 : 24+4 dB, 16 MHz,OFF GSB SETTINGS : 14. GSB Mode : Realtime 15. GSB LTA : 8 16. GSB CTRL : ONLINE 17. GSB Fstop : ON 18. GAIN EQ : OFF, 19. Stokes : TotIntensity 20. Beam - 1 : OFF 21. Beam - 2 : OFF 22. ACQ BW : 32 MHz 23. Final BW : 33.333333 MHz; Step # 0 24. Maximum Channels : 256 25. Channel Numbers : 0:255:1 26. LO5 -1 : 149.00 27. LO5 -2 : 156.00 28. Frequency Parameters (TPA) : 629 253 680 304 51 51. 29. Integration Time : 16.106112 Sec. 30. No of Antennas Working(Fringing) at the begining :24 31. Name of Non-Working Antennas (with reason for each) : C03 : Feed removed. C04 : Maintenance. S04 : No fringe at 610MHz. E06 : 130 pole having low fringe. W05 : No fringe. C10 : No fringe at 235MHz. 32. Note for Backup : 33. Start and End Time of Obs.(IST): 04:00 - 08:05 34. ONLINE Machine : Shivneri 35. No of Antennas Working(Fringing) at the end :24 36. Comments (During Observations) : 04:00 : Started set up. 04:20 : Power equalised (150 counts)and phasing done on 3C286. 04:23 : Started scan on 3C286. 04:33 : Stopped scan and started command file. Note : Strong RFI at 235MHZ. 07:47 : Stopped command file. 07:55 : Started scan on 3c48. 08:05 : Stopped scan and observing session is over.